Home / 72,891,363-100,592,180.46-40,298,414.52

Finding the Fourth Proportional to 72,891,363, 100,592,180.46 and 40,298,414.52

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Solution

The fourth proportional to 72,891,363, 100,592,180.46 and 40,298,414.52 is: 55,612,972.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,891,363 : 100,592,180.46 = 40,298,414.52 : x
  2. Step 2: Convert to fraction form
    72,891,363/100,592,180.46 = 40,298,414.52/x
  3. Step 3: Cross multiply
    72,891,363x = 100,592,180.46 × 40,298,414.52
  4. Step 4: Simplify right side
    72,891,363x = 4,053,705,385,647,724.50
  5. Step 5: Solve for x
    x = 4,053,705,385,647,724.50/72,891,363
  6. Step 6: Final answer
    x = 55,612,972.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.